Category	URL
_null	http://222.186.3.18:8888/erddap/categorize/standard_name/_null/index.xhtml?page=1&itemsPerPage=1000
depth	http://222.186.3.18:8888/erddap/categorize/standard_name/depth/index.xhtml?page=1&itemsPerPage=1000
latitude	http://222.186.3.18:8888/erddap/categorize/standard_name/latitude/index.xhtml?page=1&itemsPerPage=1000
longitude	http://222.186.3.18:8888/erddap/categorize/standard_name/longitude/index.xhtml?page=1&itemsPerPage=1000